Lambretta gearing

[Series2chris]

Has anyone rode an Li150 box with both 46/16 and 46/17 set ups. (RT195, 25mm carb through the box, Clubman)
Thanks in advance.

[Toddy]

Yes I did one for a lad LI150 46x16 28 delloro remote filter scootopia clubman

[Storkfoot]

If memory serves me right, several years back, I had a GT186 with that gearbox and I tried 46/17 on a trip that took me up the A66 (steep hills). It didn’t end well and on returning home, I changed it for 46/16 which it stayed at for many thousands of miles.

[Rich Oswald]

I tried 17/46 and it wouldn't pull up hills and into headwinds and i'm only 11.5 stone.

Rich'

[jonw]

I had a GT186, same box with 46-16 with PM Expansion and 30 PHBH which went really well. No complaints at all.

[Adam_Winstone]

Pal of mine over-geared his RT195 but didn't realise until he came to sell it. He wanted to use the front sprocket for that in his next motor build so swapped back to the smaller front sprocket and took it for a test ride... and only then realised the potential that he'd been missing out previously! He mentioned it to me as he was shocked about the performance that he'd been missing out on.

I can't remember gearbox or sprockets but it was the typical over-gearing scenario. People are so keen to fit low gearing to keep revs down but frequently push it too far and don't allow the motor to reach the RPM where the porting is designed to work at.

Try going out in the car and changing from 2nd to 4th and tell me how flexible the engine is...

[dickie]

Pal of mine over-geared his RT195 but didn't realise until he came to sell it. He wanted to use the front sprocket for that in his next motor build so swapped back to the smaller front sprocket and took it for a test ride... and only then realised the potential that he'd been missing out previously! He mentioned it to me as he was shocked about the performance that he'd been missing out on.

I can't remember gearbox or sprockets but it was the typical over-gearing scenario. People are so keen to fit low gearing to keep revs down but frequently push it too far and don't allow the motor to reach the RPM where the porting is designed to work at.

Try going out in the car and changing from 2nd to 4th and tell me how flexible the engine is...

+1
We've all done it.